// ==UserScript==
// @name         汕头大学自动看课脚本|如需全功能版本见：http://doc.zhanyc.cn
// @version      1.0-free
// @description  当前是免费版本，只包含了视频页面自动播放、解除播放暂停限制功能。如需自动下一集、自动换课程、秒过、考试答题、全自动无人值守高级功能可升级付费版本|接各类脚本开发、代挂工作，微信：zhanyc_cn 备用微信:zhanfengkuo 个人网站：http://doc.zhanyc.cn
// @author       zfk
// @include    *://*.5zk.com.cn/*
// @include    *://*.gdcxxy.net/*
// @include    *://m.zhanyc.cn/*
// @grant       GM_getValue
// @grant       GM_setValue
// @grant       GM_addStyle
// @grant       GM_deleteValue
// @grant       GM_setClipboard
// @grant       GM_registerMenuCommand
// @grant       window.close
// @run-at      document-end
// @require http://libs.baidu.com/jquery/2.0.0/jquery.min.js
// ==/UserScript==
(function () {
  let $jq = $;
  unsafeWindow.$jq = $;
  const docUrl = "http://doc.zhanyc.cn";
  let FREEJS = {
    pageData: {
      userNameIndex: null,
      confirmRunIndex: null,
      waitTime: 0,
      video: {
        index: null,
      },
    },
    async init() {
      console.log("%c FREEJS init", "background:rgb(0,0,0);color:#fff");
      FREEJS.addFloatingPanel();
      FREEJS.addStyle();
      if (location.href.indexOf("loginSuccess.html?yh=") != -1) {
        console.log("%c loginSuccess.html?yh", "background:rgb(255,0,0);color:#fff");
        return;
      }
      FREEJS.begin();
    },
    begin() {
      if (window === top) {
        FREEJS.addMenu();
      }
      FREEJS.runByUrl(location.href);
    },
    runByUrl(url) {
      if (url.includes("/jp_wiki_study") || url.includes("/wiki_study.php")) {
        FREEJS.page_video();
      } else if (url.includes("/wiki_study_iframe_kt.php")) {
        FREEJS.page_wiki_study_iframe_kt();
      } else if (url.includes("/zb_wiki_study.php")) {
        FREEJS.zb_wiki_study();
      } else if (url.includes("/live.php")) {
        FREEJS.wk_live();
      }
    },
    async zb_wiki_study() {
      FREEJS.closeWaitConfrimWin()
      console.log("%c zb_wiki_study", "background:rgb(0,0,0);color:#fff");
      let timeout = 2;
      let lastTime = null;
      let checkTimeTimesBak = 60;
      let checkTimeTimes = checkTimeTimesBak;
      FREEJS.closeWaitConfrimWin();
      if (FREEJS.pageData.video.index != null) {
        return;
      }
      setTimeout(async () => {
        let time = FREEJS.getCurTime()
        await FREEJS.waitTimeout(5000)
        if (FREEJS.getCurTime() == time) {
          alert("貌似卡主了，请刷新页面重试");
        }
      }, 60 * 1000);
      FREEJS.pageData.video.index = setInterval(async () => {
        try {
          if (FREEJS.pageData.waitTime > 0) {
            FREEJS.pageData.waitTime -= timeout;
            return;
          }
          if (!FREEJS.getVideo()) {
            console.log("%c FREEJS no video", "background:rgb(0,0,0);color:#fff");
            return;
          }
          let curTime = FREEJS.getCurTime();
          if (curTime == lastTime) {
            lastTime = FREEJS.getCurTime();
            checkTimeTimes -= timeout;
            if (checkTimeTimes <= 0) {
              checkTimeTimes = checkTimeTimesBak;
              alert("貌似卡死了，请刷新页面重试");
              FREEJS.pageData.waitTime = 10;
              return;
            }
          } else {
            lastTime = curTime;
            checkTimeTimes = checkTimeTimesBak;
          }
          FREEJS.getVideo().volume = 0;
          let cur = FREEJS.getCurTime().toFixed(0);
          let total = FREEJS.getTotalTime().toFixed(0);
          let title = `进度：${cur}/${total}`;
          $("title").text(title);
          FREEJS.updateProgress(cur, total);
          console.log("%c video run", "background:rgb(255,0,0);color:#fff");
          let $tips = FREEJS.getElByText(
            ".layui-layer-content p",
            "您好，本平台要求实时在线学习，点击按钮，继续学习课程。"
          );
          if ($tips != null) {
            $tips.parents(".layui-layer").find(".layui-layer-btn0")[0].click();
          }
          let isFinish = await FREEJS.isPlayFinish();
          if (isFinish) {
            FREEJS.pageData.waitTime = 15;
            FREEJS.tipsMsg("视频即将结束");
            setTimeout(() => {
              if (FREEJS.pageData.video.index) {
                clearInterval(FREEJS.pageData.video.index);
                FREEJS.pageData.video.index = null;
              }
            }, 10 * 1000);
            return;
          }
          let isPlay = await FREEJS.videoIsPlay();
          if (!isPlay) {
            if (!isFinish) {
              FREEJS.play();
            }
          }
        } catch (e) {
          console.error("视频页面定时器出错", e);
        }
      }, timeout * 1000);
    },
    async wk_live() {
      console.log("%c wk_live", "background:rgb(0,0,0);color:#fff");
      FREEJS.closeWaitConfrimWin()
      await FREEJS.waitOf((a) => $(".block-content table tr").length > 0);
      await FREEJS.waitTimeout(1000)
      let $el = null;
      $(".block-content table tr").each((i, el) => {
        let $btn = FREEJS.getElByText($(el).find('a'), "查看直播回放")
        if ($btn == null) return true;
        let jd = Number($btn.parents('td:first').next().text().trim().replace('%', ''))
        if (jd < 100) {
          $el = $btn;
          return false;
        }
      });
      if ($el == null) {
        FREEJS.tipsMsg("学习完成");
        return;
      }
      FREEJS.confirmRun("3秒后执行下一步", 3000).then((a) => {
        $el[0].click();
      });
    },

    async page_wiki_study_iframe_kt() {
      FREEJS.closeWaitConfrimWin()
      await FREEJS.waitOf((a) => FREEJS.getElByText($("button"), "提交答案") != null);
      await FREEJS.waitTimeout(1000);
      let answer = $("#resolve").text().trim().replace("正确答案：", "");
      $(`label input[value='${answer}']`).click();
      await FREEJS.waitTimeout(500);
      FREEJS.getElByText($("button"), "提交答案").click();
      await FREEJS.waitTimeout(2000);
      FREEJS.tipsMsg("答题完毕，请手动提交");
    },
    async page_video() {
      console.log("%c page_video", "background:rgb(0,0,0);color:#fff");
      FREEJS.closeWaitConfrimWin()
      let timeout = 2;
      await FREEJS.waitOf((a) => $("ul.list>li").length > 0);
      let $item = null;
      $("ul.list>li").each((i, el) => {
        if (/[\d:]+\/[\d:]+/.test($(el).text().trim())) {
          let jdTxt = $(el).text().trim().replace(/\s/g, '').replace(/.*\(([\d:]+\/[\d:]+)\).*/g, '$1')
          let jdTxtArr = jdTxt.split('/')
          if (jdTxtArr[0] == jdTxtArr[1]) {
            return true
          }
          $item = $(el);
          return false;
        }
        let $finishItem = $(el).find('a>span[style="color:#00A600;"]');
        if ($finishItem.length == 0) {
          $item = $(el);
          return false;
        }
      });
      if ($item == null) {
        FREEJS.tipsMsg("当前课程视频已经完成");
        return;
      } else {
        if ($item.find('i.si-control-play').length == 0 && $item.find('[style="color:#00A600;"]').length == 0) {
          $item.find("a")[0].click()
        }
      }
      FREEJS.pageData.video.index = setInterval(async () => {
        try {
          if (FREEJS.pageData.waitTime > 0) {
            FREEJS.pageData.waitTime -= timeout;
            return;
          }
          let cur = FREEJS.getCurTime().toFixed(0);
          let total = FREEJS.getTotalTime().toFixed(0);
          let title = `进度：${cur}/${total}`;
          $("title").text(title);
          FREEJS.updateProgress(cur, total);
          console.log("%c video run", "background:rgb(255,0,0);color:#fff");
          if (
            FREEJS.getElByText(
              $("div"),
              "本章不需要进行课堂测试，请继续学习！",
              "endsWith"
            ) != null
          ) {
            FREEJS
              .getElByText(
                $("div"),
                "本章不需要进行课堂测试，请继续学习！",
                "endsWith"
              )
              .parents(".layui-layer-dialog")
              .find("a.layui-layer-btn0")[0]
              .click();
          }
          let isFinish = await FREEJS.isPlayFinish();
          if (isFinish) {
            FREEJS.tipsMsg("视频即将结束");
            FREEJS.pageData.waitTime = 15;
            if (FREEJS.pageData.video.index) {
              clearInterval(FREEJS.pageData.video.index);
              FREEJS.pageData.video.index = null;
            }
            return;
          }
          let isPlay = await FREEJS.videoIsPlay();
          if (!isPlay) {
            if (!isFinish) {
              if ($("#tcaptcha_transform>visible").length == 0) {
                FREEJS.play();
              }
            }
          }
        } catch (e) {
          console.error("视频页面定时器出错", e);
        }
      }, timeout * 1000);
    },

    // ---- 悬浮引流面板 ----
    addFloatingPanel() {
      let panelHtml = `
      <div id="freejsPanel" style="position:fixed;left:0;top:0;z-index:99999;background:rgba(0,0,0,0.85);color:#fff;padding:12px;border-radius:0 0 8px 0;max-width:280px;font-size:13px;line-height:1.6;box-shadow:0 2px 12px rgba(0,0,0,0.3);">
        <div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;">
          <span style="font-weight:bold;color:#ffcc00;">汕头大学脚本·免费版</span>
          <span id="freejsCloseBtn" style="cursor:pointer;font-size:18px;color:#999;line-height:1;">&times;</span>
        </div>
        <div style="margin-bottom:6px;border-bottom:1px solid #444;padding-bottom:6px;">
          <div style="color:#aaa;font-size:12px;">当前免费功能：解除视频暂停限制</div>
        </div>
        <div id="freejsStatus" style="color:#0f0;font-size:12px;">⏳ 等待视频播放...</div>
        <div id="freejsProgressWrap" style="display:none;margin:6px 0;">
          <div style="font-size:12px;color:#ccc;">播放进度</div>
          <div style="background:#333;border-radius:4px;height:16px;margin-top:3px;position:relative;overflow:hidden;">
            <div id="freejsProgressBar" style="background:linear-gradient(90deg,#0fbcf9,#00ff88);height:100%;width:0%;border-radius:4px;transition:width 0.5s;"></div>
            <span id="freejsProgressText" style="position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-size:11px;color:#fff;text-shadow:0 0 3px #000;">0/0</span>
          </div>
        </div>
        <div style="margin-top:6px;padding-top:6px;border-top:1px solid #444;font-size:11px;color:#ccc;text-align:center;">
          接各类脚本开发、代挂、网站小程序开发工作，微信：zhanyc_cn
        </div>
        <div style="margin-top:6px;padding-top:6px;border-top:1px solid #444;">
          <div style="font-size:11px;color:#ff9900;">如需使用全功能版本（自动换课程、自动换章节、考试答题、作业答题等），请通过下方地址安装付费版本</div>
          <a id="freejsDocLink" href="${docUrl}" target="_blank" style="display:block;margin-top:6px;text-align:center;background:#ff6600;color:#fff;padding:6px 0;border-radius:4px;text-decoration:none;font-size:13px;font-weight:bold;">👉 查看付费版本</a>
        </div>
      </div>`;
      $("body").append(panelHtml);
      $("#freejsCloseBtn").click(function () {
        $("#freejsPanel").remove();
      });
    },
    updateProgress(cur, total) {
      let $wrap = $("#freejsProgressWrap");
      let $bar = $("#freejsProgressBar");
      let $text = $("#freejsProgressText");
      let $status = $("#freejsStatus");
      if (!total || total <= 0) return;
      let pct = Math.min(100, (cur / total) * 100);
      $wrap.show();
      $bar.css("width", pct + "%");
      $text.text(`${cur}/${total}`);
      $status.html("▶ 视频播放中...").css("color", "#0f0");
    },

    getVideo() {
      return document.querySelector("video");
    },
    play() {
      FREEJS.getVideo().volume = 0;
      setTimeout(() => {
        FREEJS.getVideo().play();
      }, 200);
    },
    setVideoVolume() {
      try {
        if (FREEJS.getVideo().volume != 0) {
          $("video")[0].volume = 0;
        }
      } catch (e) {
        console.error(e);
      }
    },
    setStep(time) {
      if (FREEJS.getVideo()) {
        if (time >= 0) {
          FREEJS.getVideo().currentTime = time;
        } else {
          FREEJS.getVideo().currentTime = FREEJS.getVideo().duration + time;
        }
      }
    },
    tipsMsg(msg, timeout = 3000) {
      let id = "freejs_tips_" + Date.now();
      let $tips = $(`<div id="${id}" style="position:fixed;top:80px;left:50%;transform:translateX(-50%);z-index:999999;background:rgba(0,0,0,0.8);color:#fff;padding:10px 20px;border-radius:6px;font-size:14px;box-shadow:0 2px 10px rgba(0,0,0,0.3);">${msg}</div>`);
      $("body").append($tips);
      setTimeout(() => {
        $tips.remove();
      }, timeout);
    },
    isPlayFinish() {
      try {
        return (
          FREEJS.getTotalTime() > 0 && FREEJS.getCurTime() + 5 >= FREEJS.getTotalTime()
        );
      } catch (e) {
        return false;
      }
    },
    getCurTime() {
      let res = 0;
      try {
        res = FREEJS.getVideo().currentTime;
      } catch (e) {
        console.error(e);
      }
      return res;
    },
    getTotalTime() {
      let res = 0;
      try {
        res = FREEJS.getVideo().duration;
      } catch (e) {
        console.error(e);
      }
      return res;
    },
    async videoIsPlay() {
      return new Promise((resolve) => {
        try {
          let curTime = $("video")[0].currentTime;
          setTimeout(() => {
            let time1 = $("video")[0].currentTime;
            let res = time1 > curTime;
            if (res) {
              setTimeout(() => {
                let time2 = $("video")[0].currentTime;
                let res2 = time2 > time1;
                resolve(res2);
              }, 100);
            } else {
              return resolve(false);
            }
          }, 100);
        } catch (e) {
          resolve(false);
        }
      });
    },

    confirmRun(msg = "脚本：3秒后执行下一步操作", time = 3000) {
      return new Promise((resolve, reject) => {
        clearTimeout(FREEJS.pageData.confirmRunIndex);
        FREEJS.tipsMsg(msg, time);
        setTimeout(() => {
          resolve(true);
        }, time);
      });
    },
    closeWaitConfrimWin() {
      // 免费版无需额外处理
    },

    addMenu() {
      if ($("#freejsLeftMenu").length > 0) return;
      GM_addStyle(`#freejsLeftMenu{z-index:9998;position:fixed;left:0;top:50%;transform:translateY(-50%);color:#fff;background:rgba(0,0,0,0.4);border-radius:0 4px 4px 0;padding:6px}#freejsLeftMenu:hover .freejsMenuTitle{width:auto}#freejsLeftMenu .freejsMenuTitle{cursor:pointer;word-wrap:break-word;width:1em;display:inline-block}#freejsLeftMenu .freejsMenuUl{display:none;margin:0 -6px;box-sizing:border-box}#freejsLeftMenu .freejsMenuUl li{list-style:none;color:#fff !important;cursor:pointer;padding:6px}#freejsLeftMenu .freejsMenuUl li:hover{background:#000}#freejsLeftMenu .freejsMenuUl li::before{content:"+ "}#freejsLeftMenu *{font-size:14px}`);
      $(`<div id="freejsLeftMenu">
        <span class="freejsMenuTitle">菜单</span>
        <ul class="freejsMenuUl">
          <li id="freejsMenuClear">清理缓存</li>
          <li id="freejsMenuVersion">版本信息</li>
          <li id="freejsMenuContact">联系作者</li>
        </ul>
      </div>`).appendTo("body");
      $("#freejsLeftMenu").hover(
        () => { $(".freejsMenuUl").show(); },
        () => { $(".freejsMenuUl").hide(); }
      );
      $("#freejsMenuClear").click(function () {
        if (confirm("确认要清空缓存数据吗？")) {
          FREEJS.delGMData("result");
          FREEJS.delGMData("studyRecord");
          FREEJS.tipsMsg("清空完成");
        }
      });
      $("#freejsMenuVersion").click(function () {
        alert("免费版本 v1.0-free\n如需全功能版本请访问：" + docUrl);
      });
      $("#freejsMenuContact").click(function () {
        window.open("http://doc.zhanyc.cn/contact-me/");
      });
    },

    addStyle() { },

    getElByText(query, text, mode = "eq", visible = true) {
      let $el = null;
      $(query).each((i, el) => {
        if (visible && !$(el).is(":visible")) {
          return true;
        }
        if (mode == "eq" && $(el).text().trim() == text) {
          $el = $(el);
          return false;
        } else if (
          mode == "startsWith" &&
          $(el).text().trim().startsWith(text)
        ) {
          $el = $(el);
          return false;
        } else if (mode == "endsWith" && $(el).text().trim().endsWith(text)) {
          $el = $(el);
          return false;
        }
      });
      return $el;
    },
    getElListByText(query, text, mode = "eq", visible = true) {
      let arr = [];
      $(query).each((i, el) => {
        if (visible && !$(query).is(":visible")) {
          return true;
        }
        if (mode == "eq" && $(el).text().trim() == text) {
          arr.push($(el));
        } else if (
          mode == "startsWith" &&
          $(el).text().trim().startsWith(text)
        ) {
          arr.push($(el));
        } else if (mode == "endsWith" && $(el).text().trim().endsWith(text)) {
          arr.push($(el));
        }
      });
      return arr;
    },
    waitTimeout(timeout) {
      return new Promise((resolve, reject) => {
        setTimeout(() => {
          resolve();
        }, timeout);
      });
    },
    waitOf(fun, interval = 1000, timeout = 30) {
      console.log("%c waitOf", "background:rgb(0,0,0);color:#fff");
      return new Promise((resolve, reject) => {
        let _timeOut = timeout * 1000;
        if (fun()) {
          return resolve();
        }
        let index = setInterval(() => {
          if (timeout != -1) {
            _timeOut -= interval;
            if (_timeOut < 0) {
              clearInterval(index);
              return reject();
            }
          }
          if (fun()) {
            clearInterval(index);
            return resolve();
          }
        }, interval);
      });
    },
    getUrlParam(url, name) {
      if (arguments.length == 1) {
        name = url;
        url = window.location;
      }
      var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
      var r = url.search.substr(1).match(reg);
      if (r != null) return unescape(r[2]);
      return "";
    },
    getConfig() {
      let config = GM_getValue("config", {});
      let def = { bs: "1", mode: "看课" };
      config = Object.assign(def, config);
      return config;
    },
    setConfig(val, site = "") {
      console.log("setConfig" + site, JSON.stringify(val));
      GM_setValue("config", val);
    },
    getGMData(item, def) {
      return GM_getValue(item, def);
    },
    setGMData(item, val) {
      return GM_setValue(item, val);
    },
    delGMData(item, val) {
      return GM_deleteValue(item);
    },
    now() {
      return new Date().getTime();
    },
    setClip(txt) {
      GM_setClipboard(txt, "text");
      FREEJS.tipsMsg("复制成功");
    },
  };

  setTimeout(() => {
    if (typeof (zfk) == 'undefined') {
      FREEJS.init();
    } else {
      console.log('付费版已运行，跳过免费版初始化');
    }
  }, 3000);
  unsafeWindow.FREEJS = FREEJS;
})();